valve leaflets
Application of Simple Biomechanical and Biochemical Tests to Heart Valve Leaflets: Implications for Heart Valve Characterization and Tissue Engineering
... heart valve leaflets are their nonlinear, anisotropic mechanical response and web-like collagen ...heart valve tissue engineer, a relatively simple, commercially available biaxial tester could ...
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Stress Relaxation Behaviors of Porcine Heart Valve Leaflets.
... the valve and leaflets can bring on valvular diseases. Heart valve leaflets have the ability to adapt to altered load states by changing the composition of collagen, elastin, ...
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Numerical Simulation of The Impact of Chorda Tendinea Rapture on The Mitral Valve Leaflets Stress By Finite Element Method
... mitral valve. The geometry of mitral valve was checked and entered to Catia software, after extracting of basic information from ...the valve properties and components, and finally the model was ...
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Krox20 defines a subpopulation of cardiac neural crest cells contributing to arterial valves and bicuspid aortic valve
... coronary leaflets (R-L) or the right coronary and non-coronary leaflets (R-N) (Sievers and Schmidtke, ...arterial leaflets form after outflow tract septation (Phillips et ...two leaflets may ...
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Using Discrete Multiphysics Modelling to Assess the Effect of Calcification on Hemodynamic and Mechanical Deformation of Aortic Valve
... Aortic valve disease is the malfunction of the aortic valve due to heart malformation at birth (congenital) or developed during a lifetime related to injury, age, or calcification of the valve ...
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Mechanical Mitral Valve Modeling: Advancing the Field through Emerging Science
... mitral valve repair and replacement are dependent upon a full understanding of normal and abnormal mitral valve anatomy and ...mitral valve include: the left atrial wall, the annulus, the ...
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Investigation and Validation of Imaging Techniques for Mitral Valve Disease Diagnosis and Intervention
... beating-heart valve replacements necessitates pre-operative stent ...and valve stents for beating heart ...mitral valve imag- ing is particularly challenging due to the large and rapid motion of the ...
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Adherence of Glucan Positive and Glucan Negative Streptococcal Strains to Normal and Damaged Heart Valves
... tricuspid valve sections. Adherence ratios with normal human and canine valve leaflets were similar, but adherence ratios with interatrial septum were lower than with normal valve ...
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The aortic valve : structure, complications and implications for transcatheter aortic valve replacement
... Congenital valve defects range from a missing or complete closure of the valve as in aortic atresia, to sub-aortic or supra-valvular stenosis due to a narrowing of the left ventricular or aortic tract ...
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Adherence of bacteria to heart valves in vitro
... aortic valve leaflets were compared. 2-mm sections of excised valve leaflets were obtained by punch biopsy and were incubated under standardized conditions in suspensions of ...bacteria. ...
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Comparative Anatomical Study of the Stems and Leaflets of Tribulus longipetalous, T pentandrus and T terrestris (Zygophyllaceae)
... Stems and leaflets of the studied plants T. longipetalous, T. pendulatus and T. terrestris were sectioned and studied anatomically. Wax method technique [8] was used. The plants parts were fixed for at least 72 ...
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A Study of Clinical Profile in Mitral Valve Prolapse Syndrome: A Series of 100 cases
... Patients with Mitral Valve Prolapse and severe Mitral Regurgitation should be treated similarly to other patients with severe Mitral Regurgitation and may require MV surgery. MV repair without replacement is ...
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Cardiac neural crest orchestrates remodeling and functional maturation of mouse semilunar valves
... semilunar valve abnormalities ...pulmonic valve in addition to an overriding aorta, right ventricular hypertrophy, and ventricular septal defects (19, ...aortic valve disease in humans without ...
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Optimization of automotive valve train components with implicit filtering
... The different processors communicate through a master-slave arrangement. The master first sends modeling information to each of the processors and then waits. Each slave simulates the valve train at a particular ...
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Determination of mitral valve area with echocardiography, using intra-operative 3-dimensional versus intra- & post-operative pressure half-time technique in mitral valve repair surgery
... Several studies reported the inaccuracy of PHT tech- nique for MVA measurement, and the reasons such as geometric change of MV structures and net atrioven- tricular compliance when immediately after CPB ended in MVR ...
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Structural Design and FEM Analysis of Large Butterfly Valve
... A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow. Butterfly valves are easy and fast to open. A 90° rotation of the handle provides a complete ...
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A quality assessment of orthodontic patient information leaflets
... information leaflets. Overall, the quality of patient information leaflets was deemed of moderate ...mation leaflets produced by the British Orthodontic Society were assessed as higher quality, more ...
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A comparison of wear behaviour of heat resistant steel engine valves and TiAl engine valves
... In the former work of Qu et al. [19, 20], the friction and wear characteristics of 23-8N steel (austenitic engine valve steel) and 42Cr9Si2 steel (martensitic engine valve steel) against 3Cr3Mo3W2V die ...
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First Attempts to Repel Scale Insects Using Plant Extracts: Effect on The Date Palm Scale Parlatoria Blanchardi Targ. (Hemiptera: Diaspididae)
... non-infested leaflets was recorded in leaflets treated by distilled water as control (15 days after treatment, P was significant at P ...non-infested leaflets), and the leaflets’ ...
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Surgical strategies protecting against right ventricular dilatation following tetralogy of Fallot repair
... pulmonary valve or discontinuation of the pulmonary arteries were excluded from the ...monary valve had mono-cusp pulmonary valve reconstruc- tion and were excluded from the ...
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